This is a 3 part task looking at data flow and text diagrams. Please assist.

Task 1

Your latest project is to combine two systems used by a financial institution. Decision Lender, their Loan application system is fairly new, but has no documentation. The Madison's loan management system is older, needs much revision. The records are coded and kept independently of the other system. The loan application system accepts applications, processes them, and recommends loans for approval. The loan management system takes loans that have been approved and follows them through their final disposition (paid, sold, or defaulted).

• Draw a context diagram and a level 1 data flow diagram that shows what an idealized combined system would look like

Task 2

One common experience that students in every college and university share is enrolling in a college course.

• Draw a level 1 data flow diagram of data movement for enrollment in a college course. Use a single sheet and label each data item clearly.
• Explode one of the processes in your original data flow diagram into sub-processes, adding data flows and data stores.
• List the parts of the enrollment process that are "hidden" to the outside observer and about which you have had to make assumptions as seen on a second-level diagram.

Task 3

Domino's Pizza wants to install a system to record orders for pizza and chicken wings. When regular customers call Domino's on the phone, they are asked their phone number. When the number is typed into a computer, the name, address, and last order date is automatically brought up on the screen. Once the order is taken, the total, including tax and delivery, is calculated. Then the order is given to the cook. A receipt is printed. Occasionally, special offers (coupons) are printed so the customer can get a discount. Drivers who make deliveries give customers a copy of the receipt and a coupon (if any). Weekly totals are kept for comparison with last year's performance.

• What would be a summary of business activities for taking an order at Domino's Pizza.
• Draw a context-level data flow diagram for Domino's Pizza.